Does this work for you?

diff --git a/bin/dig/dig.c b/bin/dig/dig.c
index 562ef79a73..f67f1080df 100644
--- a/bin/dig/dig.c
+++ b/bin/dig/dig.c
@@ -231,7 +231,11 @@ received(int bytes, isc_sockaddr_t *from, dig_query_t *query) {
 	isc_uint64_t diff;
 	time_t tnow;
 	struct tm tmnow;
+#ifdef WIN32
+	wchar_t time_str[100];
+#else
 	char time_str[100];
+#endif
 	char fromtext[ISC_SOCKADDR_FORMATSIZE];
 
 	isc_sockaddr_format(from, fromtext, sizeof(fromtext));
@@ -250,9 +254,15 @@ received(int bytes, isc_sockaddr_t *from, dig_query_t *query) {
 		tmnow  = *localtime(&tnow);
 #endif
 
+#ifdef WIN32
+		if (wcsftime(time_str, sizeof(time_str)/sizeof(time_str[0]),
+			     "%a %b %d %H:%M:%S %Z %Y", &tmnow) > 0U)
+			printf(";; WHEN: %ls\n", time_str);
+#else
 		if (strftime(time_str, sizeof(time_str),
 			     "%a %b %d %H:%M:%S %Z %Y", &tmnow) > 0U)
 			printf(";; WHEN: %s\n", time_str);
+#endif
 		if (query->lookup->doing_xfr) {
 			printf(";; XFR size: %u records (messages %u, "
 			       "bytes %" ISC_PRINT_QUADFORMAT "u)\n",
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org